WORCESTER 
A Princeton man charged with murder in a fatal stabbing at a weekend party on Sherbrook Avenue was ordered held without bail at his arraignment Wednesday.

Jay S. Anderson, 21, of 15 Calamint Hill Road North, Princeton, turned himself in at the Worcester Trial Court Wednesday after police obtained a warrant charging him with murder in the stabbing death of 20-year-old Boris M. Velez II.

Mr. Anderson allegedly stabbed Mr. Velez in the neck early Saturday morning at a party at 35 Sherbrook Ave., near Lake Avenue. Investigators said an argument between the two men preceded the stabbing.

Mr. Velez died Tuesday morning at UMass Memorial Medical Center — University Campus, according to police.

Mr. Anderson was accompanied by his lawyer, John M. Goggins, when he surrendered himself at the Main Street courthouse about 10:30 a.m. He was taken to police headquarters for booking and was returned to Central District Court for arraignment later Wednesday.

Judge David B. Locke ordered Mr. Anderson held without bail on the murder charge and on an outstanding warrant charging him with assault and battery with a dangerous weapon on Dec. 3, 2011, in Auburn.

The allegations in the Auburn case are that Mr. Anderson attacked 22-year-old Anthony Gentile, who identified himself to police as Mr. Anderson’s best friend, with a crowbar.

According to a police statement filed in court, Mr. Gentile told investigators Dec. 16 that he had an altercation with Mr. Anderson Dec. 3 at Mr. Gentile’s home at 7 Old Farm Road in Auburn.

Mr. Gentile said the fight was over “stupid things” and friends broke it up. Mr. Gentile related that he left the house and was walking down Old Farm Road to get away from Mr. Anderson when he heard someone running up behind him.

He told Officer Spiros G. Kaperonis that he was struck on the back of his head with a blunt object and fell to the ground. When he got up, he saw Mr. Anderson holding a crowbar, according to the statement.

Mr. Gentile alleged that Mr. Anderson struck him again on the front of his head, knocking him down, and continued hitting him with the crowbar while he was on the ground. He said he was able to fend off the blows with his forearms and get up and run back to his house. Then he was taken to the hospital, where he got 11 staples and 11 stitches to close his wounds.

A warrant against Mr. Anderson also was lodged out of Leominster District Court for an alleged violation of his probation there. He will be taken to the Leominster court at some point to answer the warrant.

At the request of Assistant District Attorney Brett F. Dillon, Judge Locke dismissed charges of armed assault with intent to murder and aggravated assault and battery that had been taken out against Mr. Anderson after the stabbing but before Mr. Velez died.

Members of Mr. Velez’s family who were in court Wednesday declined to comment after the arraignment.

Judge Locke’s bail order was issued without prejudice, which allows Mr. Goggins to seek a bail hearing for Mr. Anderson at a later date.

The judge continued Mr. Anderson’s cases to March 5.

“Anytime there’s an injury or death, it’s always a tragedy, and my client is going to vigorously defend himself in this matter,” Mr. Goggins said after the arraignment.

Cody Torres, 21, of 11A Riverview Road, Sterling, was arraigned later in the day on a charge of misleading police or prosecutors in connection with the investigation into Mr. Velez’s slaying.

Mr. Dillon told Judge Locke that Mr. Torres made several false statements to authorities that impeded the investigation.

At the prosecutor’s request, Judge Locke revoked Mr. Torres’ release on personal recognizance on pending charges of assault and battery and malicious destruction of property and ordered that he be held without bail on those charges for up to 60 days.

The judge set $5,000 cash bail on the new charge and continued both cases to March 6.